Leaf photosynthesis, chlorophyll fluorescence and ion content of barley (<i>Hordeum vulgare</i>) in response to salinity

Allel, Dorsaf; Ben-Amar, Anis; Abdelly, Chédly

doi:10.1080/01904167.2017.1385811

Cited by 44 publications

(39 citation statements)

References 30 publications

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“…Nowadays, chlorophyll fluorescence trait, measured as F v / F m ratio, is widely regarded as a reliable and reproducible indicator of photo‐inhibition (Munns & James, ). Chlorophyll a fluorescence kinetics is an indicator of the effects of salinity stresses on photosynthesis in barley (Allel, Ben‐Amar, & Abdelly, ; Kalaji, Govindjee, Koscielniakan, & Gołaszewskae, ; Kalaji & Guo, ), which is consistent with our findings. The suitability of F m and F v / F m in discriminating salinity‐tolerant wild barley genotypes is in agreement with the report of Kalaji et al () on the cultivated barley.…”

Section: Discussionsupporting

confidence: 91%

Salinity tolerance of wild barley Hordeum vulgare ssp. spontaneum

et al. 2019

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Salinity tolerance of 47 wild barley genotypes and six barley cultivars was evaluated under control and salinity stress (300 mM NaCl) conditions. Shoot and root dry weight (DW), plant height, membrane stability index (MSI), relative water content, survival rate, leaf malondialdehyde (MDA) and proline contents, root and leaf Na, K, Ca and K/Na ratio, and chlorophyll a fluorescence were measured. Salinity stress caused significant increase in the MDA, proline content, Na and Ca concentrations of the roots and leaves, but resulted in a decrease in the other traits. H. spontaneum genotypes were considerably less affected by the salinity than the genotypes of H. vulgare. Plant survivability was negatively correlated with the Na concentration (r =−.66) but positively correlated with the leaf K/Na ratio (r = .67) and MSI (r = .68).Tolerance mechanisms such as ion exclusion (Na) were likely to be present in the wild barley causing K/Na homeostasis as well as the much lower root and shoot Na, resulting in the higher survival rate. K E Y W O R D S barley breeding, genetic variation, ion content, salt tolerance, wild barley | 305 EBRAHIM Et Al. S U PP O RTI N G I N FO R M ATI O N Additional supporting information may be found online in the Supporting Information section. How to cite this article: Ebrahim F, Arzani A, Rahimmalek M, Sun D, Peng J. Salinity tolerance of wild barley Hordeum vulgare ssp. spontaneum. Plant Breed. 2020;139:304-316.

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Section: Discussionsupporting

confidence: 91%

Salinity tolerance of wild barley Hordeum vulgare ssp. spontaneum

et al. 2019

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“…Salinity is one of the widespread abiotic stresses that adversely affect plant growth and productivity in several parts of the world, particularly in arid regions [ 4 , 5 , 6 ]. About 30% of the world irrigated lands that produce approximately one-third of the crops are affected by salinity [ 3 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

Multidimensional Evaluation for Detecting Salt Tolerance of Bread Wheat Genotypes Under Actual Saline Field Growing Conditions

Mansour

Moustafa

Desoky

et al. 2020

Plants

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Field-based trials and genotype evaluation until yielding stage are two important steps in improving the salt tolerance of crop genotypes and identifying what parameters can be strong candidates for the better understanding of salt tolerance mechanisms in different genotypes. In this study, the salt tolerance of 18 bread wheat genotypes was evaluated under natural saline field conditions and at three saline irrigation levels (5.25, 8.35, and 11.12 dS m−1) extracted from wells. Multidimensional evaluation for salt tolerance of these genotypes was done using a set of agronomic and physio-biochemical attributes. Based on yield index under three salinity levels, the genotypes were classified into four groups ranging from salt-tolerant to salt-sensitive genotypes. The salt-tolerant genotypes exhibited values of total chlorophyll, gas exchange (net photosynthetic rate, transpiration rate, and stomatal conductance), water relation (relative water content and membrane stability index), nonenzymatic osmolytes (soluble sugar, free proline, and ascorbic acid), antioxidant enzyme activities (superoxide dismutase, catalase, and peroxidase), K+ content, and K+/Na+ ratio that were greater than those of salt-sensitive genotypes. Additionally, the salt-tolerant genotypes consistently exhibited good control of Na+ and Cl− levels and maintained lower contents of malondialdehyde and electrolyte leakage under high salinity level, compared with the salt-sensitive genotypes. Several physio-biochemical parameters showed highly positive associations with grain yield and its components, whereas negative association was observed in other parameters. Accordingly, these physio-biochemical parameters can be used as individual or complementary screening criteria for evaluating salt tolerance and improvement of bread wheat genotypes under natural saline field conditions.

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“…It was reported that the level of antioxidant enzymes rises when plants are exposed to oxidative stress including salt stress [18,25,26]. Analysis of chlorophyll content and chlorophyll-based parameters are considered as an important way to evaluate the integrity during the photosynthetic process under salt stress, while the high performance of photosynthesis was reported to associate with salt tolerance ability [27,28]. In addition, biosynthesis of osmoprotectants and compatible solutes: e.g., proline and sugar) considered an adaptive role in mediating osmotic adjustment and protecting the sub-cellular structures in salt stressed plants [6].…”

Section: Introductionmentioning

confidence: 99%

Stomatal and Photosynthetic Traits Are Associated with Investigating Sodium Chloride Tolerance of Brassica napus L. Cultivars

Mohamed

Shalby

Bai

et al. 2020

Plants

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The negative effects of salt stress vary among different rapeseed cultivars. In this study, we investigated the sodium chloride tolerance among 10 rapeseed cultivars based on membership function values (MFV) and Euclidean cluster analyses by exposing seedlings to 0, 100, or 200 mM NaCl. The NaCl toxicity significantly reduced growth, biomass, endogenous K+ levels, relative water content and increased electrolyte leakage, soluble sugar levels, proline levels, and antioxidant enzyme activities. SPAD values were highly variable among rapeseed cultivars. We identified three divergent (tolerant, moderately tolerant, and sensitive) groups. We found that Hua6919 and Yunyoushuang2 were the most salt-tolerant cultivars and that Zhongshuang11 and Yangyou9 were the most salt-sensitive cultivars. The rapeseed cultivars were further subjected to photosynthetic gas exchange and anatomical trait analyses. Among the photosynthetic gas exchange and anatomical traits, the stomatal aperture was the most highly correlated with salinity tolerance in rapeseed cultivars and thus, is important for future studies that aim to improve salinity tolerance in rapeseed. Thus, we identified and characterized two salt-tolerant cultivars that will be useful for breeding programs that aim to develop salt-tolerant rapeseed.

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Leaf photosynthesis, chlorophyll fluorescence and ion content of barley (Hordeum vulgare) in response to salinity

Cited by 44 publications

References 30 publications

Salinity tolerance of wild barley Hordeum vulgare ssp. spontaneum

Salinity tolerance of wild barley Hordeum vulgare ssp. spontaneum

Multidimensional Evaluation for Detecting Salt Tolerance of Bread Wheat Genotypes Under Actual Saline Field Growing Conditions

Stomatal and Photosynthetic Traits Are Associated with Investigating Sodium Chloride Tolerance of Brassica napus L. Cultivars

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